Good Morning,
seat test and closure test - Same.
Back seat test - The Gate / Globe valve in full open condition.
The Stem ( Back seat ) lock the stem bush in the bonnet to avoid leakage.
Shell test - Partial open - 1.5 times design pr
Back Seat - Full Open - 1.1 times design pr
Seat Test - Full close - 1.1 times design pr
Best Regards
Kingsly Geo
On Wed, 8 Apr 2020 at 08:20, <rawat.sing@gmail.com> wrote:
What is difference between seat test and closure test.
What is the required position of gate during back seat test.
Regards
Rawat
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